Bee-Master Vape Pen Set containing multi-color vape battery with matching 510 Thread cartridge all in a beautiful glossy carrying case with compartments for vape vart, battery, and USB charger. BEE-MASTER Vape Cart Pen for Essential OilThe Bee-Master Vaporizer kit is just one of many HoneyStick Oil Vape Pen Products offered by HoneyStick.CART PEN BATTERY: Bee-Master battery for your 510 thread prefilled or refillable oil vape cartridges, stylish and powerful multi-color pen batt with 3 temperature/power settings 3.6V, 3.8V and 4.0V. This 3-inch long little vape battery is carrying 350 mAh capacity and will last all day without charging.Oil VAPE CARTRIDGE: Performance 510 thread oil vape tank in matching Multi-Color finish. 0.5ML capacity with powerful ceramic heater (1.20 Ohm coil resistance). When you refill it, the center post and heater of the tank are removed to create a large easy surface to fill with your perfect oil without losing one drop of essential oil.